A SAMPLER OF SELECTED 2017 BMC AUCTION SPECIMENS (2017 Auction Date is Saturday, 21 January)
Volume 1 Pyrite [FeS2]
Locality Huanzala Mine Huallanca Huanuco Peru
Size 6.5 x 6.0 x 4.8 cm
BMC Purchase
Crystal System: isometric Physical Properties Transparency: opaque Mohs hardness: 6 to 6.5 Density: 4.8 to 5 gm/cm3 Streak: greenish-black to brownish-black Photograph by Mike Haritos Luster: metallic Azurite
Cu3(CO3)2(OH)2
Locality Milpillas Mine Cuitaca Mun. de Santa Cruz Sonora, Mexico.
Size: toe nail
Donated by Don Olson
Crystal System: monoclinic Physical Properties Transparency: Transparent, Translucent Mohs hardness: 3.5 to 4 Density: approx 3.8 gm/cm3 Photograph by Mike Haritos Streak: light blue Luster: vitreous Baryte [BaSO4]
Locality Nador Morocco
Size
8.8 x 6.0 x 5.0 cm
BMC Purchase
Crystal System: orthorhombic Physical Properties Transparency: Transparent, Translucent, opaque Mohs hardness: 3 to 3.5 Density: approx 4.5 gm/cm3 Streak: white Luster: Vitreous, Pearly Photograph by Mike Haritos Gold [Au]
Locality R. J. Roberts Lode Willow Creek Pershing County Nevada
Size: thumbnail
BMC Purchase
Crystal System: isometric Physical Properties Transparency: opaque Mohs hardness: 2.5 to 3 Density: 15 to 19.3 gm/cm3 Streak: Shining yellow Luster: metallic Photograph by Mike Haritos Fluorite [CaF2]
Locality Xianghuapu Mine (Maiwan Mine) Xianghualing Sn- polymetallic ore field Linwu Co., Chenzhou Prefecture Hunan Province China.
Size
10.8 x 6.2 x 2.8 cm Photograph by Mike Haritos
Donated by Bill Crystal System: isometric Metropolis Physical Properties Transparency: transparent Streak: white Mohs hardness: 4 Luster: Vitreous, Dull Density: 3.175 - 3.56 gm/cm3 Calcite [CaCO3]
Locality Xikuangshan Mine Dongchuan Cu ore field Dongchuan District Kunming Prefecture Yunnan Province China Size: 8.4 x 7.8 x 5.2 cm BMC Purchase
Crystal System: trigonal Physical Properties Transparency: transparent, translucent Mohs hardness: 3 Density: approx 2.71 gm/cm3 Streak: white Photograph by Mike Haritos Luster: Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly Quartz [SiO2] var. Amethyst
Locality Artigas Artigas Department Uruguay
Size 17.0 x 6.1 x 3.5 cm
Includes custom wood stand (not shown)
BMC Purchase
Crystal System: trigonal Physical Properties Transparency: Transparent, Translucent Mohs hardness: 7 Density: 2.65 to 2.66 gm/cm3 Streak: white Photograph by Mike Haritos Luster: Vitreous Wulfenite [Pb(MoO4)] & Mimetite [Pb5(AsO4)3Cl]
Locality Rowley Mine. Maricopa County Arizona
Size Thumbnail
Includes acrylic stand
BMC Purchase
Wulfenite Crystal System: Tetragonal Wulfenite Physical Properties Transparency: Transparent, Translucent, Opaque Photograph by Mike Haritos Mohs hardness: 2½ - 3 Density: 6.5 to 7.5 gm/cm3 Streak: white Luster: Adamantine, Sub-Adamantine, Resinous Float Copper [Cu]
Locality Upper Peninsula Michigan
Size 17.5 x 13.0 x 1.0 cm.
BMC Purchase
Crystal System: isometric Physical Properties Transparency: opaque Mohs hardness: 2.5 to 3 Density: approx 8.95 gm/cm3 Streak: copper - red Luster: metallic Photograph by Mike Haritos Ammonite Fossil
Species Colignoceras Upper cretaceous
Locality Tulear Madagascar
Size 10.0 x 9.4 x 2.5
BMC Purchase
Photograph by Mike Haritos Galena [PbS] & Pyrite [FeS]
Locality Krushev dol deposit Krushev dol mine Madan ore field Rhodope Mountains Smolyan Oblast Bulgaria Size: 6.2 x 5.7 x 3.7 cm. BMC Purchase
Pyrite Crystal System: isometric Pyrite Physical Properties Transparency: opaque Mohs hardness: 6 to 6.5 Density: 4.8 to 5 gm/cm3 Streak: greenish-black to Photograph by Mike Haritos brownish-black Luster: metallic Manganocalcite [(Ca,Mn)CO3] & Pyrite [FeS]
Locality Krushev dol deposit (Krusov dol deposit) Krushev dol mine Madan ore field Rhodope Mountains Smolyan Oblast Bulgaria
Size: 11.0 x 5.0 x 3.9 cm
BMC Purchase
Photograph by Mike Haritos Calcite Crystal System: trigonal Physical Properties Transparency: transparent, translucent Mohs hardness: 3 Density: 2.71 gm/cm3 Streak: white Luster: Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly Galena [PbS] & Sphalerite [ZnS]
Locality Krushev dol deposit Krushev dol mine Madan ore field Rhodope Mountains Smolyan Oblast, Bulgaria Size: 6.2 x 5.7 x 3.7 cm BMC Purchase MINERAL Galena Sphalerite Crystal System Isometric Isometric transparent, Transparency Opaque translucent Hardness 2.5 3.5 to 4 Density 7.58 gm/cm3 3.9 - 4.1 gm/cm3 Photograph by Mike Haritos pale yellow to Streak lead -grey brown adamantine, Luster metallic, dull resinous Calcite [CaCO3]
Locality Pune District (Poonah District) Maharashtra India Size: 7.5 x 6.3 x 3.5 cm BMC Purchase
Calcite Crystal System: trigonal Physical Properties Transparency: transparent, translucent Mohs hardness: 3 Density: 2.71 gm/cm3 Streak: white Luster: Vitreous, Sub-Vitreous, Photograph by Mike Haritos Resinous, Waxy, Pearly Apophyllite [KCa4(Si4O10)2F•8(H2O)] and Stilbite [NaCa4Al8Si28O72•30(H2O)]
Locality Pune District (Poonah District) Maharashtra India Size: 3.9 x 2.7 x 2.3 cm
BMC Purchase MINERAL Apophyllite Stilbite Crystal System Tetragonal Monoclininc transparent, transparent, Transparency subtransparent, translucent translucent Hardness 4 to 5 3.5 to 4 Density 2.3 - 2.4 gm/cm3 2.1 – 2.2 gm/cm3 Streak white white Photograph by Mike Haritos Luster Vitreous - Pearly Vitreous - Pearly Stilbite [NaCa4Al8Si28O72•30(H2O)] and Stalactitic Chalcedony (Quartz) [SiO2]
Locality Pune District (Poonah District) Maharashtra India Size: 4.9 x 1.7 x 1.7 cm
BMC Purchase
MINERAL Stilbite Chalcedony Crystal System Monoclinic Triclinic transparent, opaque, Photograph by Mike Haritos Transparency subtransparent, transparent, translucent translucent Hardness 3.5 to 4 6.5 to 7 Density 2.1 – 2.2 gm/cm3 2.6 – 2.65 gm/cm3 Streak white white
Luster Vitreous - Pearly Vitreous Heulandite [(Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)], Stilbite [NaCa4Al8Si28O72•30(H2O)] & Stalactic Chalcedony
Locality Pune District (Poonah District) Maharashtra India Size: 4.5 x 3.0 x 1.5 cm BMC Purchase
MINERAL Heulandite Stilbite Crystal System Monoclinic Monoclinic transparent, transparent to Transparency subtranslucent translucent Photograph by Mike Haritos Hardness 4 to 5 3.5 to 4 Density 2.2 gm/cm3 2.1 – 2.2 gm/cm3 Streak white white
Luster Vitreous - Pearly Vitreous - Pearly Beryl xls. [Be3Al2(Si O3)6]
Locality Pingwu beryl mine Huya W-Sn-Be deposit; (Xuebaoding W-Sn-Be deposit) Huya township, Mt Xuebaoding Pingwu County Mianyang Prefecture Sichuan Province, China Size: 7.8 x 7.1 x 4.0 cm BMC Purchase
Beryl Crystal System: hexagonal Physical Properties Photograph by Mike Haritos Transparency: transparent, translucent Mohs hardness: 7.5 to 8 Density: 2.63 - 2.9 gm/cm3 Streak: white Luster: Vitreous, Resinous Plumbogummite [PbAl3(PO4)2(OH)5•(H2O)]
Locality Yangshuo Mine Yangshuo County Guilin Prefecture Guangxi Zhuang Autonomous Region China Size: 5.0 x 4.0 x 2.7 cm Donated by Bill Metropolis
Crystal System: hexagonal Physical Properties Transparency: opaque, translucent Photograph by Mike Haritos Mohs hardness: 4 to 5 Density: 4 to 5 gm/cm3 Streak: white Luster: greasy